body,html
  line-height 1
  font-weight 200
  font-family 'PingFang SC','STHeitiSC-Light','Helvetica',Arial,sans-serif
@media(-webkit-min-device-pixel-ratio: 1.5),(min-device-pixel-ratio: 1.5)
  .border-1px
    &::after
      -webkit-transform scaleY(0.7)
      transform scaleY(0.7)
@media(-webkit-min-device-pixel-ratio: 2),(min-device-pixel-ratio: 2)
  .border-1px
    &::after
      -webkit-transform scaleY(0.5)
      transform scaleY(0.5)
.clearfix
  display inline-block
  &:after
    display block
    content ''
    height 0
    line-height 0
    clear both
    visibility hidden
